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Detailed explanation-1: -The name “etcd” comes from a naming convention within the Linux directory structure: In UNIX, all system configuration files for a single system are contained in a folder called “/etc; ” “d” stands for “distributed.”

Detailed explanation-2: -The name “etcd” originated from two ideas, the unix “/etc” folder and “d"istributed systems. The “/etc” folder is a place to store configuration data for a single system whereas etcd stores configuration information for large scale distributed systems. Hence, a “d"istributed “/etc” is “etcd”.

Detailed explanation-3: -etcd is written in Go and uses the Raft consensus algorithm to manage a highly-available replicated log.

Detailed explanation-4: -The etcd Operator installs with a single command and allows users to configure and manage the complexities of etcd using simple declarative configuration that creates, configures, and manages etcd clusters.